Can I use my Bass amplifier (s25b?) to jack in a guitar and a bass?

A friend of mine lost his “portable” amplifier but he still has a pedal so I figured if he puts distortion on that he could use the “high” input slot on my bass amplifier to play here. Amplifier says Silk Road on the front and Bass Amplifier S25B above the power switch. I could not find it online with that info, I see no reason you should be able to. Anyone see any problems with this plan?